Elevator-door.



. wExLER.

ELEvAoR DooR.

APPLICATION FILED JUNE l5, 1916.

finge 1a To@ LAL Patented Aug. 21.1917.,

- rannte essere@ BENJAMIN WEXLER, OF BROOKLYN, NEW YORK, ASSIGNOR TO TI-IE PEELLE COMPANY, 0F BROOKLYN, NEW YORK, A CORPORATION OE NEW YORK.

nLnvATon-Doon.

Specification of Letters Patent.

Application led .T une 15, 1916. Serial No. 103,703.

To all whom t may concern:

Be it known that I, BENJAMIN IVEXLER, a citizen of the United States, residing at the borough of Brooklyn, cit-y of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Elevator-Doors, of which the following is a specification, reference being had therein to the accompanying drawings, which -form a part thereof.

My invention relates to elevator doors and more particularly to a type ofk doors known as truckable doors wherein a vertically sliding door or section thereof is so controlledas to bring the top thereof substantially flush with the door sill to bridge the gap between the car platform and the sill.

Ordinarily in doors of this character stops are rprovided upon 'the guide rails at each side of the door opening, so as to arrest movement of the door or door section when in the proper position, the material of the door itself being relied upon in large measure to resist the strain upon the truck bar intermediate said stops. At -the present time, however, fireproof elevator doors are being largely made of metal frames having corrugated sheathing. This type of door is comparatively light in structure and unsuited to withstand the load placed upon' the top bar of the frame or a truck bar carried thereby.

By my invention I provide a truckable elevator door which may have a light metallic structure throughout, if desired, the stresses of loads passing across the truck bar from the floor of a building to the elcvator platform, beingr transmitted to the wall of the elevator shaft instead of being sustained by the door structure and the stops carried by the rails upon which the door has vertical movement. In this manner the load upon the truck bar may be distributed across.

the plane of movement of the frame of 'the door, said door being necessarily so constructed as to permit the free movement of the door past said support while insuring' the proper relative positions of the truck bar and the supports when the door is open.

The invention consists primarily in an elevator door embodying therein a vertically movable section adapted to descend below v,

the sill when open, said section having a metal sheathing and an angular frame 1nclosing and pro]ectmg beyond same, 'suspension means for said section, a truck bar secured to the upper reach of said frame,

and an elongated support secured adjacent the sill of the door openingand projectingtoward an elevator door of the couliter-balanced type having two vertically movable sections adapted to have movement in opposite directions in opening and closing the door.

Referring to the drawings Figure 1 is an elevation of a door of the type above referred to. parts thereof being broken away. and the door being shown in the open position;

Fig. Q is a horizontal section above the lintel with the door in the closed position;

Fig. 2S is a vertical section adjacent the sillvwith the doors in the closed position; and

Fig. 4 is a vertical section similar to Fig. 3 with vthe doors in the open position.

Like letters referto like parts throughout the several views.

In the accompanying drawings, I have shown at (t a portion ot' an elevator shaft or well having a door opening l) therein, the lintel of said opening being indicated at 5 and the sill thereof at 7F. In thc shaft a at opposite sides of the door opening, are vertically extending parallel guide rails c upon which arevslidably mounted the upper and lower sections d 'c of a counterlnilanced door, said sections being connected by the suspension cables y passing over the pulleys l I so moving in the shoes e5 secured :at the sill b2 'if'. The door ysections fl-e l are of substantially the same Weightso as to counterhalan'ce each other and each is provided withA suitable shoes coperatng with tlierails c.

Said doors move in substantially the same 'plane but' in opposite directions.

The upper door` section' comprises a light angle iron frame df'inclosing a corrugated metal sheathing cl2, the framed being reinforced intermediate the sides thereof by a vertically extending binderbarl Z3 sliding n a suitable shoe d4 secured at the lintel b".

This construction is desirable butv is nonessential to the 'present-invention:

The llower .section c also con'iprises` a metal frame e of light angle ironinclosing a cor-.

rugated metal sheathin e2. vThe top bar'of the frame e 'has the web thereof laterally rojected from each sildie of theframe t.' il) .shine g.

"' rm extensions 'e3 to whichvthe' suspension cables f are connected. The frame'el is' re inforced interniediate 'the' sides thereof, by a binder c4 having a-laterally extendedih'ead of the doorway.' This binder bar andshoe in addition to holding the door section close to.

i the sill so .thatthe dool'cannotbe swunglby.

'35 -yided .with thev customary fla'me 'shleld :qu

more fully 'appear hereinafter.

The lower lreach ofthef franiefe f' Th e' top barof thefrarne has secured to orbar being of a'widthsufliclentto substang i i ',thorefoiy are relieved from the strains-of :these loads and the'suspension cables are re' I i` the, upper flange'thereofz ajl'aterally'extend? 'plate known asa truck bar, .thisfplate tially .spanor .bridge the gap between the Siu-b2 mi the ele-vaas Car' pimms-mai; 'catedat in thedrawingj The -plate orbar l I1, is' of a length, substantially"equalingthe ".Widthofthe door opening b. y t A Bolted or otherwise. secured to the inner` 'j' wallofthe shaft ai below the sill b2., isa plui'ality of gaged w'hchthe door 'and theftruck bar..are'subf jected when trucks-'pass from' thelioor opposite sides the'building' to. the car;

,These 'supports '-j are arrangedupon .of t,

.'tofbrinthe top o'f the plate or lbar h substantia y Hush and'shoe e5 foi'in a substantially continuous supporti .extending across". the .entire'fioor.;V openingV so 4that stresses applied to. any lpor-- supportsjy-'j adaptedto be er1-"- y 'the'underside of the-flange of the" top reachof the yframe e', when'thedoorsecti'on e is' lowered, to 'sustain the 'load'ito je shoe e5 and,.'with said shoe,- are yspaced sufficiently blowthe sill' b? with 'sai(1 Hoon' whenl .the y ,door section e is lowered.' 'The supports j. -'j

the wall of the elevator shaftlrthigs relieving the door itself from these stresses and preventing distortion of the door 0r undue stresses. upon the gui'des'or .up'onthe sus j,

pension cables Preferably thesupports j-j are made of channel irontoimpart the j desired strength thereto-,and Yfacilitate' thel 'attachment ofothe supports to the wall ofthe i elevator shaft. Thelower-web of each .channel fornliing the' supports'jM-ej extends's'uili- 'Cently Vclose to the flame' lshield .g to cooperate therewith-in preventing a' drafted'- 'l jacent the -s'ill in the event of fire. To iper- .mit t'he lower' reach of the frarneie to pass l' f.

the supports jffjf andjthe shoe e5 .the flange of `this fratrie is'. recessedat 'asshown in.-

Fig.

When the elevator 'door-is closed the supportsI yL-'y'f' willlcoperate with the flame toclose the opening between the' bottom' of said door-andthe sill 52;' By. using a plurality'of separate supports jf-j '/itisfpsslble to use thisstructul'fe with a door vu'sing'a binder s uch as l theguid'esor rails c and the door coperatwhenthe door-is open, old-the top' rim of'therfrar'ne e.' upon the Said-support.: l

' -ghth'erewith' serving;

, 'When the door i--sjopen the -underside -of'ffl' .95

the ltop bar o'f the frame will engage'and e47 thisn binderavith 'rest upon? the saidsilpports aswell as upon ythe shoe'efgsmce said. lsupports ner-y 'finally project within the fmniee and vinto f lclose proximity to the v'sheathing c2;

. herein. de- ,sscribedf-it, is vpossible to use a 'light'i.door l structure 'without-liability of thejsaxne being ''distorted by.r`easoi1 df heavy loads passing across. thetop "thereof-' v Furthermorer.. the

By-'means fof 'thg'construction Hides'r or rails'c or 'the supporting: plate l'ieved Yfrein those stresses incidental yto .the

" intention t0 liinit the invenf ioo `depression-of the central vpf'irtion'of the doors"- l' i tion, tothe preclse details of. 'constructionsame-support may vertically movableI door section adapted to shownin' the accompanying drawings, itbe- 4ingapparent 'that such'may. varied.witl1 cnt dcparting from the spirit andjsco'pefof thef'inventi'o-n..j

By usingfav plurality. of supports the h e used with doors of dif-.l ferentfwidths andgin'ay. beso-1." set' with' rela 'tion to 'the shoe e5; as' to.g ive.the'-desired.re# A F vc ti'cm, `'what I have protected tion having a metal-sheathing and an angu# lar frame' lnclosingandprojecting beyond i lthe sil-me; s-usp'ens-onnieans for said' section, a'" 't'r'uck .baisecured to the. upperreac'h of said the wall of` the elevator shaft adjacent the sill and projecting within the door frame, a

vertically extending binder bar carried by said frame and said sheathing, said bar having an enlarged head slidably mounted in said shoe and an auxiliary, laterally extending plane support adjacent said shoe whereby when said ,door is open said shoe and said support will eceive the load upon said truck bar and transmitit to the wall of the elevator shaft. y y l 2. An elevator door embodying therein a vertically movable door section adapted to descend below the sill when open, said section having a metal sheathing and an angular frame inclosing and projecting beyond same7 suspension means for said section, a truck bar secured to the upper reach of said frame, a shoe secured t0 the wall of the elevator shaft adjacent the sill, a vertically extending binder bar carried by said frame and said sheathing, said bar having an enlarged head slidably mounted in said shoe, and a plurality of elongated supports secured to the elevator shaft upon opposite sides of said Shoe and adjacent the sill of the door opening, and projecting toward said door section within said frame whereby when said door Section is open, said support will receive the load upon said truck bar and transmit it to the wall of the elevator shaft and said binder bar and shoe will hold the frame of the door in a fixed relation to said support.

An elevator door embodyingtherein a vertically movable door sectlon adapted to descend below the sill when open, said sec,

tion having a metal sheathing and an angular frame iin-losing and projecting beyond same, suspension means for said section, a truck bar secured to the upper reach of said frame, a llame shield carried by the bottom -reach ot' said frame and projecting toward the wall of the elevator shaft, and an elougated channel support secured to the elevator shaft adjacent the sill of the door opening and projecting toward saiddoor section within said trame whereby when said door is open, thel upper flange of said channel support will receive the load upon said truck bar and transmit it to the wall ot' the elevator sha l't and when said door is closed,

.the lower llange ol" said channel support will project in close proximity to said llame shield, the .lower reach ol said frame being recessed to permit ill to pass the lower [lange ot' said channel support.

4. An elevator door embodying therein a vertically movable door 'action adapted to descend below the sill, when open, said scction having a metal sheathing and an angular frame inclosing and projecting beyond same, suspension means for said sect1on, ,a

truck bar secured to the upper reach ,of said frame, a shoe secured to the wallof the elevator shaft, a vertically extending lbinder bar carried by said frameand said sheathing, said bar having an enlarged head slidably mounted in said shoe, a flame shield` carried by the bottom reach of said frame and projecting toward the Wall of the elevator shaft and a plurality of elongatedl channel supports vsecuredtol the elevator shaft upon opposite sides of said shoe and adjacent the sill of the door opening and projecting toward said door section Within said frame'whereby when said dooris'open the upper flange of each of said channel supports will receive the load upon said truck bar and transmit it-to the wall of the elevator shaft and when said door is closed, the lower flange of said channel supports will project in close proximity to said flame shield, the lower reach of said frame being recessed to permit' it to pass the lower flange of said channel support.

5. An elevator door embodying therein two vertically movable door sections, one of which is adapted to ascend above the lintel and the. other of which is adapted t0 descend below the sill when the door is open, each of said sections having a metal sheathing and an angular frame inclosing and projecting beyond same, suspension means, the opposite ends ot' which are connected to said sections respectively whereby said sections are connterbalanced, a. truck bar secured to the upper reach of the frame of thelo'wer section, a llame shield carried by the bottom reach ot' said frame and Aprojecting toward the wall ol the elevator shaft and a plurality ot' elongated channel supports secured to the elevator shal't upon opposite sides of Said sha'l't and adjacent the sill of the door opening and projecting toward said door section within said trame whereby when said door' is open the upper flange ot'each ot .sald' channel supports will receive the load upon said truck bar aml transmit it to the wall ofA 

